(MyFoxBoston.com) -- The founder of Amazon.com would like to take the online retailer's delivery system one step further by offering delivery via drone.

During an interview on "60 Minutes," CEO Jeff Bezos said the store is developing a delivery system called "Prime Air." He said he hopes the system, which would deliver products within 30 minutes after purchase, would be offered within 5 years.

The potential delivery system raises questions about privacy for critics. Last month, U.S. Sen. Ed Markey (D-Mass.) expressed concerns over the Federal Aviation Administration's plan to protect the privacy of Americans in a time of increased drone use, reports TheHill.com.

Markey introduced legislation known as The Drone Aircraft Privacy and Transparency Act in November. The bill would require "transparency in the use of domestic drones and privacy protections to ensure drones cannot be used to spy on Americans," according to a press release from the senator.

"Before drones start delivering packages, we need the FAA to deliver privacy protections for the American public. Convenience should never trump constitutional protections," said Sen. Markey. "Before our skies teem with commercial drones, clear rules must be set that protect the privacy and safety of the public."